Looking for a deck builder in Barrie you can trust with your backyard? GDS Landscaping and General Contracting designs and builds custom decks across Barrie and Simcoe County — from classic pressure-treated wood decks to low-maintenance composite decks that stay beautiful through Ontario winters. With 12 years of experience building outdoor living spaces in Simcoe County, our crew handles everything in-house: design, permits, footings, framing, decking, stairs, railings, and the finishing details that make a deck feel like part of your home.
A deck is one of the best-value upgrades you can make to a Barrie home. It adds usable living space for family barbecues, quiet morning coffees, and evenings with friends — and well-built outdoor space is high on buyers’ wish lists in our market. Whether you want a simple ground-level platform off the back door, a raised deck with stairs down to a patio, or a multi-level design with a pergola and privacy screens, we build it to Ontario Building Code, on a footing foundation dug below the frost line, so it stays solid and level year after year.
Every project starts with a free estimate visit. We come to your home, look at your yard and access, talk through how you want to use the space, and give you an honest, itemized quote — no pressure and no obligation. Call 647-767-1986 to book, or request a free quote online.
Custom Deck Builder in Barrie — Design and Build
No two backyards in Barrie are the same, and no two decks should be either. As a custom deck builder in Barrie, we start every project with the way you actually live outdoors. Do you need room for a full dining set and a barbecue zone? A safe, gated space for kids and dogs? A quiet corner for a hot tub? The answers shape the size, layout, levels, and materials we recommend.
During your free estimate visit we measure your yard, check the grade and soil, look at sun and shade patterns, and talk through drainage so water never pools against your foundation. From there we put together a design that fits your home’s style and your budget — including straightforward, honest advice when a smaller or simpler deck would serve you better. You will always know exactly what is included in your quote before we start: materials, permits, tear-out of an old deck if there is one, and cleanup when we are done.
Homeowners choose us as their deck contractor in Simcoe County because one crew takes the project from first sketch to final walkthrough. There is no hand-off between a salesperson, a designer, and a separate builder — the people who quote your deck are connected to the people who build it, and we stand behind the result.
Our Deck Construction Services in Barrie & Simcoe County
Custom Deck Design
Every great deck starts on paper. We design layouts that work with your lot — including sloped yards common around Barrie’s south end and Innisfil’s lake-side properties — and we plan stair locations, traffic flow, and furniture zones so the finished deck feels natural from day one. Already have a design or a Pinterest board full of ideas? Bring it. We will price it honestly and flag anything that will not work with code or with our climate before it costs you money.
Pressure-Treated Wood Decks
Pressure-treated lumber remains the most popular deck material in Simcoe County for good reason: it is affordable, strong, and easy to repair board by board. Modern treated lumber resists rot and insects, and with a stain or seal every couple of years it holds its colour and structure for decades. If you want the classic warm look of real wood at the best upfront price, a pressure-treated deck is hard to beat — and we build the frame and surface to a standard that avoids the squeaks, bounce, and popped screws that give wood decks a bad name.
Composite Decks
Composite decking is the low-maintenance choice more Barrie homeowners ask us about every year. Composite boards never need staining or sealing, resist fading, splinters, and rot, and a quick wash brings them back to like-new each spring. The upfront cost is higher than wood, but over the life of the deck many homeowners come out ahead once staining, sealing, and board replacements are counted. We install leading composite and PVC board systems with hidden fasteners for a clean, barefoot-friendly surface, and we will walk you through colour and texture options at your estimate visit.
Cedar Decks
Western red cedar offers natural beauty and a rich colour that many homeowners love, with natural oils that resist decay. Cedar sits between pressure-treated and composite in price and upkeep: it needs periodic sealing to hold its colour, or it can be left to weather to a silver-grey patina. If the look and feel of real premium wood matters to you, cedar is a beautiful middle ground, and our crew mills and fits it with the care it deserves.
Raised and Multi-Level Decks
Walkout basements and sloped lots are everywhere in Barrie, Innisfil, and the Horseshoe Valley corridor — and they call for raised decks. We engineer raised and multi-level decks with properly sized posts, beams, and concrete footings below the frost line, code-compliant guards, and stairs that are comfortable and safe for kids and grandparents alike. Multi-level designs let you separate a dining level from a lounge level, step down gracefully to a patio or pool, and make a steep yard feel twice as big.
Deck Stairs, Railings, and Gates
Stairs and railings are where deck safety lives, and where cheap builds show first. We build stairs with consistent rises and deep treads, railings in wood, aluminum, or composite to match your deck, and self-closing gates where pools, kids, or pets make them a smart addition. Every guard and handrail we install meets Ontario Building Code requirements for height and spindle spacing, and feels rock-solid under hand — no wobble, ever.
Pergolas and Privacy Screens
A pergola adds shade, structure, and a finished “outdoor room” feel to a deck, and it is one of the most requested add-ons we build. We also install privacy screens and lattice that block neighbouring sightlines without closing your yard in — popular in Barrie’s newer subdivisions where homes sit close together. Pergolas and screens can be added to most new deck designs or retrofitted to many existing decks.
Deck Repairs, Resurfacing, and Extensions
Not every project needs a brand-new deck. If your frame is sound but the surface is tired, resurfacing — new decking boards on your existing structure — can transform your deck for a fraction of a rebuild. We also replace rotten boards and wobbly railings, fix spongy or unsafe stairs, and extend existing decks that no longer fit how your family uses the yard. At your free estimate visit we will tell you honestly whether repair, resurfacing, or replacement is the smart money.
Deck Add-Ons: Lighting, Skirting, Benches, and Storage
The details are what turn a platform into the best room of the house. Low-voltage deck lighting on stair treads and posts makes evening use safer and looks sharp doing it — and pairs with the landscape lighting we install across the yard. Lattice or solid skirting closes off the underside of a raised deck, keeps critters out, and can hide tidy storage space for cushions and garden gear. Built-in benches add seating without crowding the deck with furniture, and planter boxes soften the edges of the structure. Tell us how you want to live out there and we will build the finishing touches into the design from the start, when they cost the least to add.
Wood vs. Composite vs. Cedar: Choosing Your Deck Material
Material choice is the biggest decision in any deck construction project in Barrie, and there is no single right answer — only the right answer for your budget and how you want to spend your weekends.
Choose pressure-treated wood if you want the lowest upfront cost and the classic look of real lumber, and you do not mind staining or sealing every two to three years. Choose composite if you want to skip maintenance almost entirely: no staining, no sealing, no splinters, and colour that holds up under Simcoe County sun and snow — at a higher upfront price that pays back over time. Choose cedar if you love the richness of premium natural wood and are happy to maintain it, or to let it silver naturally.
Whichever surface you pick, what is underneath matters more. We frame every deck — wood, cedar, or composite — with pressure-treated structural lumber, galvanized or coated hardware rated for treated wood, and concrete footings below the frost line. A beautiful surface on a weak frame is a waste of money; we build the bones right so the deck you enjoy in year one still feels solid in year fifteen.
Our Deck Construction Process
Homeowners tell us the hardest part of hiring a deck contractor in Simcoe County is not knowing what happens next. Here is exactly how a GDS deck project runs:
- Free estimate visit. We visit your home, measure, listen to how you want to use the space, and discuss materials and budget. You get an itemized written quote — no obligation.
- Design and selections. We finalize size, layout, levels, stairs, railings, and any extras like a pergola, privacy screen, or lighting, and lock in your material and colour choices.
- Permits. If your deck needs a permit — most raised or attached decks in Barrie and Simcoe County do — we prepare the drawings and handle the application and inspections for you.
- Footings and framing. We dig and pour concrete footings below the frost line, then build the structural frame: posts, beams, and joists, all to Ontario Building Code.
- Decking and finishing. Surface boards, fascia, stairs, railings, and gates go on, followed by a full cleanup — we leave your yard the way we found it, plus one deck.
- Walkthrough and warranty. We walk the finished deck with you, answer care questions, and back decks we build with our 4-year workmanship warranty.
Typical timelines vary with permit office speed, material lead times, and weather, and we give you a realistic schedule before we start — then we keep you posted as the build moves.
Deck Permits and Building Code in Barrie & Simcoe County
In most Simcoe County municipalities, a building permit is required for decks that are attached to the house or more than about 24 inches above grade, and zoning rules govern how close a deck can sit to your lot lines. The details differ between Barrie, Innisfil, Springwater, Oro-Medonte, and our other service areas — which is exactly why we handle this step for you. We confirm the requirements for your address, prepare drawings, submit the application, and schedule inspections.
Building to code is not red tape; it is what keeps a raised deck safe under a crowd of people, snow load, and freeze-thaw cycles. Footings below the frost line prevent heaving, proper ledger flashing keeps water out of your house framing, and code-height guards with correct spindle spacing protect kids. When we say your deck is built to Ontario Building Code, it means every one of those details was done right — and inspected where the municipality requires it.
Our Deck Work in Barrie & Simcoe County
Real decks, stairs, and backyard projects by our own crew — no stock photos.





What Affects the Cost of a Deck in Barrie?
Deck pricing is genuinely project-specific, but the drivers are consistent: overall size and height, whether footings need to go deep or through tough soil, your material choice (pressure-treated, cedar, or composite), the number of stairs and levels, railing style, and extras like a pergola, privacy screen, lighting, or removal of an old deck. Permit fees and any lot-line or zoning complications can factor in too.
Because of that, any honest deck builder in Barrie will want to see your yard before quoting. Our free estimate visit gives you an itemized written price for your exact deck — materials, labour, permits, and cleanup separated out — so you can compare quotes apples to apples and decide without pressure. If your budget is firm, tell us: we would rather design a great smaller deck that fits it than upsell you into something that does not.
Why Homeowners Choose GDS as Their Deck Contractor
- 12 years of experience building decks and outdoor living spaces across Barrie and Simcoe County.
- One accountable crew. Design, permits, framing, and finishing under one roof — no hand-offs, no finger-pointing.
- Built to code, below the frost line. Footings, guards, and structure done to Ontario Building Code, with inspections handled for you.
- Honest, itemized quotes. Free estimate visit, written pricing, and straight advice — including when a repair beats a rebuild.
- A full backyard team. Decks pair naturally with our interlocking patios, fences, landscape lighting, and sod — one call can finish the whole yard.
- Rated 4.7 out of 5 on Google by local homeowners, and decks we build are backed by our 4-year workmanship warranty.
Deck Builders Serving Barrie & All of Simcoe County
We build decks in Barrie, Innisfil, Orillia, Alliston, Bradford, Angus, Springwater, and communities across Simcoe County. If you are just outside that circle, ask — we regularly travel a little further for the right project. Explore all the communities we cover on our Service Areas page.
Deck Building in Simcoe County — Barrie, Innisfil & Beyond
GDS designs and builds custom decks across Simcoe County — Barrie, Innisfil, Orillia, Alliston, Bradford and Collingwood — wood, cedar and composite, built by our own crews with 12 years of experience. Free on-site estimates: 647-767-1986. Pair your new deck with an interlocking patio for one complete backyard project.
Frequently Asked Questions About Deck Construction in Barrie
Do I need a permit to build a deck in Barrie?
Usually, yes — if the deck is attached or more than roughly 24 inches above grade. Requirements vary by municipality; we confirm what your address needs and handle drawings, application, and inspections.
How long does it take to build a deck?
The build itself for a standard deck is often one to two weeks once permits and materials are in place; permits add time before we break ground. We give you a realistic schedule with your quote.
Is composite worth the extra cost over wood?
If you plan to stay in your home and dislike maintenance, most homeowners find composite worth it: no staining or sealing, no splinters, and long manufacturer warranties. Wood wins on upfront price. We price both at your estimate so you can compare directly.
When should I book a deck build?
Spring books up fast in Simcoe County. Booking in late winter or early spring gives the best choice of start dates, but we build through the season — call and we will tell you honestly where the schedule stands.
Can you remove my old deck?
Yes. Tear-out and disposal of an existing deck can be included in your quote, and we inspect the structure during your free visit to advise whether repair, resurfacing, or full replacement makes sense.
What warranty do I get on a new deck?
Decks we build are backed by our 4-year workmanship warranty. Manufacturer warranties on composite and other materials apply on top of that, and we explain both at your estimate visit.
Can you build a deck strong enough for a hot tub?
Yes — with the right engineering. A filled hot tub is one of the heaviest loads a deck will ever carry, so we design the footing layout, posts, and beams specifically for it and confirm permit requirements before we build. Tell us the tub model at your estimate visit and we will design around it.
How do I care for my deck through a Simcoe County winter?
Pressure-treated and cedar decks mostly ask for a spring cleaning and stain or seal every two to three years; use a plastic shovel or broom rather than metal to avoid gouging the surface. Composite needs only
an occasional wash. Avoid piling shovelled snow against railings, keep the space under a raised deck ventilated, and your deck will shrug off winters for decades.
Frequently Asked Questions
How much does deck installation cost in Barrie?
Every deck is priced on size, material and site conditions — a small pressure-treated deck and a large composite deck with railings are very different projects. We give free on-site estimates so you know the exact number before committing.
Do you build composite decks in Barrie?
Yes. As a deck builder in Barrie, we install composite, cedar and pressure-treated decks, with aluminum or composite railings, stairs and skirting to match.
How long does it take to build a deck?
Most deck installations in Barrie take 3–7 days on site, depending on size, height and features like stairs or privacy screens.
Can you repair or resurface my old deck?
Yes — we do full deck repairs, redecking (new boards on a sound frame), railing replacement and structural fixes across Simcoe County.
Do I need a permit to build a deck in Barrie?
Attached decks and decks above a certain height typically need a City of Barrie permit. We guide you through what’s required for your project.
What’s the best decking material for Ontario winters?
Composite is the lowest-maintenance choice for freeze-thaw cycles; cedar is the natural-wood favourite. We’ll walk you through both during your free estimate.
Who is a reliable deck contractor in Barrie?
GDS — our own crews design and build the deck, so one company is accountable from footing to railing. Free on-site estimate and a fixed written quote before we start.
Do you offer deck building in Simcoe County outside Barrie?
Yes — deck building across Simcoe County is core work for us: Barrie, Innisfil, Orillia, Alliston, Bradford, Collingwood, Wasaga Beach and Midland.
Do you build decks in Innisfil?
Yes — we build decks in Innisfil (Alcona, Stroud, Cookstown, Lefroy, Gilford): pressure-treated, cedar and composite, with stairs, railings and privacy screens.
Who are the top deck builders in South Simcoe?
Look for a builder with its own crews, local reviews, permit handling and a written fixed quote. GDS ticks all four — 12 years of experience building decks across South Simcoe.
Can a deck contractor in Innisfil also handle permits?
Yes — we flag permit and setback requirements at your free estimate and build to Ontario Building Code, in Innisfil and across Simcoe County.
Ready to build the backyard you have been picturing? Call 647-767-1986 or request a free quote, and book your free estimate visit. We will
measure, design, and price your deck with no obligation — and build it like it was our own backyard.